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Full text of "The Morphology And Evolution Of The Apes And Man"

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THE UEOGBXITAL OBGANS               i«JT
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The epoophoron and paroophoron have been described as present by several authors. In the Gorilla the tube is sinuous in the adult according to BischofF .425,, or it makes a double bend in the foetus according to Deniker
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<44). Xo parovarium is present, but Deniker described a cord, which may be a remnant of the Wolffian body, running upwards to behind the kidneys. In the Gibbon the tube may be sinuous or curved,
Uterus (fig. 48).—The uterus in the Apes, as in ilan, is placed higher in the foetus than in the adult. As age advances it descends to the lower part of the pelvis, where it is separated by well-marked peritoneal fossa? from the bladder and rectum. It is always small, even in adult animals, being about the size of the uterus of the female child. The cervix is large relatively to the body. In a Chimpanzee forty-three inches long from the crown to the heels the body of the uterus was 1'S cm. long, whereas the length of the cervix was 1*2 cm. The round ligaments, which are of considerable size and strength, run forwards and upwards from the utero-tubal junction. The fundus is rudimentary or absent. The interior of the body of the uterus is smooth between the tubes, but lower down the mucosa is thrown into vertical and transverse ridges. The muscular coat is thin in the upper part of the body, but it is thicker in the lower part of the body and in the cervix. The external os uteri is oval or slit-like, and its lips may be equal or unequal. Probably the form depends on whether the animal is nulliparous, or has borne young. Gratiolet (330) described a bicornuate uterus in a Chimpanzee,
Vagina (fig. 48).—The vagina expands from above downwards, and its upper part forms fornices round the